EP 2689710 B1 20160803 - METHOD FOR PRODUCING OPTICAL FIBER, OPTICAL FIBER, AND ENDOSCOPE
Title (en)
METHOD FOR PRODUCING OPTICAL FIBER, OPTICAL FIBER, AND ENDOSCOPE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON OPTISCHEN FASERN, OPTISCHE FASER UND ENDOSKOP
Title (fr)
PROCÉDÉ DE FABRICATION DE FIBRES OPTIQUES, FIBRE OPTIQUE ET ENDOSCOPE
Publication
Application
Priority
- JP 2011277355 A 20111219
- JP 2012081973 W 20121210
Abstract (en)
[origin: US2013259436A1] Provided is a method for manufacturing an optical fiber that is inserted into an insertion portion of an endoscope and guides light, wherein inside an upright fiber drawing furnace, inside a hollow clad tube including a clad glass having a viscosity eta1 of 5.0<Log eta1<7.0 at a temperature at which a viscosity eta2 of a core glass becomes Log eta2=3.5, the core glass in a fluidized state runs down by gravity, whereby the core glass and the clad glass are integrated.
IPC 8 full level
A61B 1/00 (2006.01); A61B 1/07 (2006.01); C03B 37/027 (2006.01); G02B 6/00 (2006.01); G02B 6/02 (2006.01); G02B 23/24 (2006.01)
CPC (source: EP US)
A61B 1/00 (2013.01 - US); A61B 1/0011 (2013.01 - EP US); A61B 1/0017 (2013.01 - EP US); A61B 1/07 (2013.01 - EP US); C03B 37/02718 (2013.01 - US); C03B 37/02754 (2013.01 - EP US); C03B 37/029 (2013.01 - EP US); G02B 6/06 (2013.01 - US); C03B 2201/10 (2013.01 - EP US); C03B 2201/32 (2013.01 - EP US); C03B 2201/50 (2013.01 - EP US); C03B 2203/222 (2013.01 - EP US); C03B 2203/32 (2013.01 - EP US); C03B 2205/14 (2013.01 - EP US); C03B 2205/16 (2013.01 - EP US); C03B 2205/63 (2013.01 - EP US); G02B 23/2469 (2013.01 - EP US); Y02P 40/57 (2015.11 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013259436 A1 20131003; US 8639078 B2 20140128; CN 103517661 A 20140115; CN 103517661 B 20150902; EP 2689710 A1 20140129; EP 2689710 A4 20150429; EP 2689710 B1 20160803; JP 5362140 B1 20131211; JP WO2013094460 A1 20150427; WO 2013094460 A1 20130627
DOCDB simple family (application)
US 201313850549 A 20130326; CN 201280020406 A 20121210; EP 12859162 A 20121210; JP 2012081973 W 20121210; JP 2013513320 A 20121210